Open MPI logo

Open MPI User's Mailing List Archives

  |   Home   |   Support   |   FAQ   |   all Open MPI User's mailing list

From: Graham E Fagg (fagg_at_[hidden])
Date: 2006-02-08 00:46:24

> On Tue, 7 Feb 2006, Jean-Christophe Hugly wrote:
>> On Thu, 2006-02-02 at 21:49 -0700, Galen M. Shipman wrote:
>>> I suspect the problem may be in the bcast,
>>> ompi_coll_tuned_bcast_intra_basic_linear. Can you try the same run using
>>> mpirun -prefix /opt/ompi -wdir `pwd` -machinefile /root/machines -np
>>> 2 -mca coll self,basic -d xterm -e gdb PMB-MPI1
>>> This will use the basic collectives and may isolate the problem.

Strange, ompi_coll_tuned_bcast_intra_basic_linear is an exact copy of the
basic .. add -mca coll_base_verbose 1 to the mpirun line to see what else
is happening.